[Kde-pim] Email parsing with KMime

[Simon MORIN]

Hello everyone !

I am currently writing an IMAP client based on IMAP KIOSlave. Receiving emails 
works very well, I have a problem when it comes to parse them.

I am using KMime to parse the received emails and I succeded in extracting 
information like the subject and the sender but I did not find how to extract 
attachments and message.

My parsing code :
-------------------------------------------------------------------------------------------------------------------
qDebug() << "#### BUFFER ####";
qDebug() << buffer;	// It is filled with KIOSlaves/KIO::Job
qDebug() << "^^^^ BUFFER ^^^^";

KMime::Message msg;

msg.setContent(buffer);
msg.parse();

KMime::Headers::Subject *subject = msg.subject();
KMime::Headers::From *from = msg.from();
KMime::Headers::ContentType *contentType = msg.contentType();
KMime::Content *textContent = msg.textContent();	// also tried with msg.body()

qDebug() << "################################################";
qDebug() << "Subject : " << subject->asUnicodeString();
qDebug() << "From : " << from->asUnicodeString();
qDebug() << "ContentType : " << contentType->asUnicodeString();
qDebug() << "ContentList : " << msg.contents().count();
qDebug() << "isTopLevel : " << msg.isTopLevel();
qDebug() << "TextContent : " << textContent->decodedText();

KMime::Content::List list = msg.attachments();
foreach (KMime::Content *c, list) {
     qDebug() << "attachments : ";
}

-------------------------------------------------------------------------------------------------------------------

The email I'm using as example (attachment has been truncated to clarify this 
message, but I receive it entirely) :

-------------------------------------------------------------------------------------------------------------------
"Return-Path: <xxxxx at server.net>
X-Original-To: yyyyyyyy at server.fr
Delivered-To: yyyyyyyy at server.fr
Received: from swip.net (mailfe16.tele2.fr [212.247.155.236])
        by ns1.in-cube.fr (Postfix) with ESMTP id 6956921C43F
        for <yyyyyyyy at server.f>; Thu, 15 May 2008 11:14:10 +0200 (CEST)
X-Cloudmark-Score:   0.000000 []
X-Cloudmark-Analysis: v=1.0 c=1 a=pVnfisNvH1wA:15 
a=BeU0tpR/o6fNtzzsb0tEYw==:17 a=CTZ-cyHp61CmNF8wezMA:9 
a=dOOiiLsxfFU5VUS8jMEqp4PecNEA:4 a=TmLYuLy49JwA:10 a=FgQqJ79YvNMF2P38qboA:9 
a=GeeuSLW9dhGAq
EcJSNzJUDCNPfoA:4 a=21jJXJW0LzcA:10 a=HXjIzolwW10A:10
Received: from [193.251.65.138] (account azertyuiop at tele2.fr HELO yoda)
  by mailfe16.swip.net (CommuniGate Pro SMTP 5.1.13)
  with ESMTPA id 197221082 for yyyyyyyy at server.f; Thu, 15 May 2008 11:13:44 
+0200
From: Simon MORIN <xxxxx at server.net>
To: yyyyyyyy at server.f
Subject: Test avec PJ
Date: Thu, 15 May 2008 11:13:24 +0200
User-Agent: KMail/1.9.9
MIME-Version: 1.0
Content-Type: Multipart/Mixed;
  boundary="Boundary-00=_16/KIrrn+Yjnjwa"
Message-Id: <200805151113.25183.xxxxx at server.net>

--Boundary-00=_16/KIrrn+Yjnjwa
Content-Type: text/plain;
  charset="utf-8"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

Test

Simon MORIN

--Boundary-00=_16/KIrrn+Yjnjwa
Content-Type: image/png;
  name="atlantis2.png"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
        filename="atlantis2.png"

iVBORw0KGgoAAAANSUhEUgAABaAAAAOECAYAAABXTZbSAAAgAElEQVR4nOyd2ZasOq5FMblH/f8H
n8T1ELiTZSG5IYjINe+ou08GYBvjVlbjtm3zGwAAAAAAAAAAAAAAAAAwmf3dBQAAAAAAAAAAAAAA
AADAgTQAAAAAAAAAAAAAAAAAJYAATQAAAAAAAAAAAAAAACAJUAADQAAAAAAAAAAAAAAAGAJEEAD
.......
AAAAAAAA4BEE0AAAAAAAAACARxBAAwAAAAAAAAAeQQANAAAAAAAAAHgEATQAAAAAAAAA4BEE0AAA
AAAAAACARxBAAwAAAAAAAAAeQQANAAAAAAAAAHgEATQAAAAAAAAA4BEE0AAAAAAAAACARxBAAwAA
AAAAAAAeQQANAAAAAAAAAHjEfwBA5pMc4Xwc4AAAAABJRU5ErkJggg==

--Boundary-00=_16/KIrrn+Yjnjwa--
"
-------------------------------------------------------------------------------------------------------------------

The output of my code :
-------------------------------------------------------------------------------------------------------------------
 ######################################################
Debug: widgetmail_p.cpp ( result )# 86  :  Subject :  "Test avec PJ^M"
Debug: widgetmail_p.cpp ( result )# 87  :  From :  "Simon MORIN             
<xxxxx at server.net>"
Debug: widgetmail_p.cpp ( result )# 88  :  ContentType :  "text/plain; 
charset="US-ASCII""
Debug: widgetmail_p.cpp ( result )# 89  :  ContentList :  0
Debug: widgetmail_p.cpp ( result )# 90  :  isTopLevel :  true
Debug: widgetmail_p.cpp ( result )# 91  :  TextContent :  ""
-------------------------------------------------------------------------------------------------------------------

As we can see, "Subject" is OK, "From" is OK and I'm not sure if "ContentType" 
is OK. What bother me is that "ContentList" = 0, (should be 1) 
and "TextContent" contains nothing.

What should I do to extract those two part of the email ?

Thank you very much for your answer.

Simon MORIN
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